Results 141 to 150 of about 3,320,858 (291)

Direct Measurement of the Singlet Lifetime and Photoexcitation Behavior of the Boron Vacancy Center in Hexagonal Boron Nitride

Advanced Optical Materials, EarlyView.
Negatively charged boron vacancy defects in hexagonal boron nitride promise near‐surface quantum sensing, but their internal spin transition rates are only partly understood. This work directly measures the defect's singlet‐state lifetime, 15(3) ns, using a nanosecond rise‐time dual‐pulse photoluminescence‐recovery method, and shows that high laser ...
Richard A. Escalante, Andrew J. Beling, Daniel G. Ang, Niko R. Reed, Justin J. Welter, John W. Blanchard, Cecilia Campos, Edwin Coronel, Klaus Krambrock, Alexandre S. Leal, Paras N. Prasad, Ronald L. Walsworth   +11 more
wiley   +1 more source

Tests of the RCS Method for Preserving Low-Frequency Variability in Long Tree-Ring Chronologies

, 2003
To preserve multi-centennial length variability in annual tree-ring chronologies, the Regional Curve Standardization (RCS) method calculates anomalies from a regionally common, non-climatic age-trend function.
Esper, Jan, Peters, Kenneth, Krusic, Paul J., Schweingruber, Fritz H., Cook, Edward R.   +4 more
core  

Waveguide Photoactuators: Materials, Fabrication, and Applications

Advanced Robotics Research, EarlyView.
Waveguide photoactuators convert guided light into mechanical motion. Their tethered‐flexible design enables minimally invasive surgery and confined‐space robotics. This review aims to guide materials selection, device design, and system integration, accelerating the transition of waveguide photoactuators from laboratory prototypes to versatile ...
Minjie Xi, Hemin Pan, Yang Zong, Yongfeng Mei, Jizhai Cui   +4 more
wiley   +1 more source

LLM‐Integrated Human–Robot Interaction System for Microrobots

Advanced Robotics Research, EarlyView.
This paper proposes an LLM‐based control framework for guiding microrobots using human natural language. This framework can convert the natural human speech into safe and executable command sets for reliable navigation in complex environments. The experimental results show high accuracy and robustness in task performance, demonstrating the potential of
Bairong Zhu, Amar Salehi, Tingting Yu
wiley   +1 more source

Removing Biological Trends From Tree-Ring Series: Testing Modified Hugershoff Curves

, 2010
The performance of the Hugershoff curve on fitting the growth trends of tree-ring series was tested using ring-width series with different starting years.
Zhang, Fen, Gou, Xiaohua, Peters, Kenneth, Li, Jinbao, Fang, Keyan   +4 more
core  

Tailoring Vascular‐Immune Homeostasis via Manganese‐DNA Complex‐Armed Immunogenic Extracellular Vesicles for Pancreatic Cancer Immunotherapy

Advanced Science, EarlyView.
This study demonstrates that Mn2⁺–tumor DNA complexes encapsulated in dendritic cell (DC)– derived immunogenic extracellular vesicles (EVDC@Mn‐DNA) act as a DC‐specific cGAS– STING activator. EVDC@Mn‐DNA treatment enhances intratumoral DC activation, improves tumor vascular function, promotes CD8⁺ T cell activity, and suppresses pancreatic tumor growth,
Xue Jiang, Lihuan Shang, Xiaochun Chen, Xiangzhan Kong, Xiaojuan Wang, Linjia Jiang, Huiying Zhao, Yafeng Zhu, Cheng Huang, Shiyi Deng, Rui Zhang, Minghui Wang, Haoming Lin, Ping‐Pui Wong   +13 more
wiley   +1 more source

Piezofluorochromism in Aramid Dyads: Pressure‐Triggered Luminescence Enhancement with Predictable Emission Shifts

Advanced Science
Aggregation‐induced emission has highlighted aramids as promising platforms for developing solid‐state luminophores, broadening the conventional design landscape for these materials.
Yayun Wang, Zhe Jia, Yaru Wang, Lin Wei, Zimin Hao, Yanan Wang, Jingwen Guo, Aisen Li, Lei Li, Kai Wang, Qian Li   +10 more
doaj   +1 more source

Dendrochronological Modeling of the Effects of Climatic Change on Tree-Ring Width Chronologies from the Chaco Canyon Area, Southwestern United States

, 1992
Hypotheses about the causes of the growth and decline of the Chacoan regional interaction system in the southwestern United States between A.D. 900 and 1200 are evaluated against tree-ring evidence and the results of an empirical model (PRECON) that ...
Dean, Jeffrey S., Fritts, Harold C.
core  

In Vivo Microplastic Detection With Photoacoustic Imaging

Advanced Science, EarlyView.
ABSTRACT Microplastics are posing an escalating threat to both ecological systems and human health. Yet, current methods for investigating their bioaccumulation are highly invasive, requiring destructive analysis of ex vivo tissues via mass spectrometry, dye labelling, or Raman microspectroscopy.
Joseph C. Bear, Olumide Ogunlade, Jayvian Mavi, Emily J. Deniszczyc, Daolong Chen, Heeva Javaheri, Paul Beard, Mark F. Lythgoe, Daniel J. Stuckey, P. Stephen Patrick   +9 more
wiley   +1 more source

Benchmarking Dielectronic Recombination Rate Coefficients for Carbon-like Ca14+

The Astrophysical Journal
Dielectronic recombination (DR) rate coefficients for C-like Ca ^14+ were measured by Wen et al. at the electron cooler storage ring in Lanzhou, China. The measured DR rate coefficients from 0 to 92 eV cover most of the DR resonances associated with the ...
C. Y. Zhang, B. S. Yan, K. Wang, R. Si, K. Yao, W. L. Ma, Z. K. Huang, W. Q. Wen, X. W. Ma, L. F. Zhu, C. Y. Chen, N. R. Badnell   +11 more
doaj   +1 more source